Element block pseudo-class :active generated with background transition font-weight normal height auto float none display block box-sizing content-box opacity 1 font-size 16px margin 0px padding 20px cursor default position static line-height 1 border-radius overflow hidden transform border 0px rgba(0,0,0,1) solid outline none text-shadow 1px 1px 1px rgba(0,0,0,0.2) z-index auto box-shadow 1px 1px 1px rgba(0,0,0,0.3) width 160px